Drop filter



FIG. 1 is a perspective view of the drop filter according to anembodiment of the present invention;

FIG. 2 is a front view of the drop filter shown in FIG. 1;

FIG. 3 is a back view of the drop filter shown in FIG. 1;

FIG. 4 is a right side view of the drop filter shown in FIG. 1;

FIG. 5 is a left side view of the drop filter shown in FIG. 1;

FIG. 6 is a top view of the drop filter shown in FIG. 1; and,

FIG. 7 is a bottom view of the drop filter shown in FIG. 1.

The broken lines in the Figures show the environment of the claimed dropfilter. The broken lines in all of the Figures form no part of theclaimed design.

CLAIM The ornamental design for a drop filter, as shown and described.